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/* Copyright (C) 2008 Sun AB & Michael Widenius
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
#ifndef MA_STATE_INCLUDED
#define MA_STATE_INCLUDED
C_MODE_START
/* Struct to store tables in use by one transaction */
typedef struct st_maria_status_info
{
ha_rows records; /* Rows in table */
ha_rows del; /* Removed rows */
my_off_t empty; /* lost space in datafile */
my_off_t key_empty; /* lost space in indexfile */
my_off_t key_file_length;
my_off_t data_file_length;
ha_checksum checksum;
uint32 changed:1, /* Set if table was changed */
no_transid:1; /* Set if no transid was set on rows */
} MARIA_STATUS_INFO;
typedef struct st_used_tables {
struct st_used_tables *next;
struct st_maria_share *share;
MARIA_STATUS_INFO state_current;
MARIA_STATUS_INFO state_start;
uint use_count;
} MARIA_USED_TABLES;
/* Struct to store commit state at different times */
typedef struct st_state_history {
struct st_state_history *next;
TrID trid;
MARIA_STATUS_INFO state;
} MARIA_STATE_HISTORY;
/* struct to remember history for closed tables */
typedef struct st_state_history_closed {
LSN create_rename_lsn;
MARIA_STATE_HISTORY *state_history;
} MARIA_STATE_HISTORY_CLOSED;
my_bool _ma_setup_live_state(MARIA_HA *info);
MARIA_STATE_HISTORY *_ma_remove_not_visible_states(MARIA_STATE_HISTORY
*org_history,
my_bool all,
my_bool trman_is_locked);
void _ma_reset_state(MARIA_HA *info);
my_bool _ma_get_status(void* param, my_bool concurrent_insert);
void _ma_update_status(void* param);
void _ma_update_status_with_lock(MARIA_HA *info);
void _ma_restore_status(void *param);
void _ma_copy_status(void* to, void *from);
my_bool _ma_reset_update_flag(void *param, my_bool concurrent_insert);
my_bool _ma_start_trans(void* param);
my_bool _ma_check_status(void *param);
void maria_versioning(MARIA_HA *info, my_bool versioning);
void _ma_set_share_data_file_length(struct st_maria_share *share,
ulonglong new_length);
void _ma_copy_nontrans_state_information(MARIA_HA *info);
my_bool _ma_trnman_end_trans_hook(TRN *trn, my_bool commit,
my_bool active_transactions);
my_bool _ma_row_visible_always(MARIA_HA *info);
my_bool _ma_row_visible_non_transactional_table(MARIA_HA *info);
my_bool _ma_row_visible_transactional_table(MARIA_HA *info);
void _ma_remove_not_visible_states_with_lock(struct st_maria_share *share,
my_bool all);
void _ma_remove_table_from_trnman(MARIA_HA *info);
void _ma_reset_history(struct st_maria_share *share);
C_MODE_END
#endif
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